Quick identification and resolution of wastewater treatment problems prevents process upsets and ensures compliance.

Common Problems and Solutions

Poor Effluent Quality

Possible causes:

• Insufficient aeration (low DO)
• Toxic shock to biomass
• Hydraulic overload
• Poor sludge settlement

Solutions: Increase aeration, identify and eliminate toxic source, reduce flow, check settling parameters.

Foaming in Aeration Tank

Possible causes:

• Excessive surfactants
• Low F/M ratio
• Filamentous organisms
• Temperature variations

Solutions: Add anti-foam, adjust wasting rate, consider selector zones, improve sludge age.

Sludge Bulking

Possible causes:

• Low DO in aeration
• Low F/M ratio
• Nutrient deficiency
• Specific industrial compounds

Solutions: Increase DO, adjust wasting, add nutrients, consider chlorination of return sludge.

High Effluent Suspended Solids

Possible causes:

• Clarifier overloading
• Poor sludge settling
• Pin floc
• Denitrification in clarifier

Solutions: Reduce hydraulic load, improve settling, adjust MLSS, control denitrification.

Feiran EP Technical Support

Contact our technical team for troubleshooting assistance and equipment optimization.

Email: sale@yixingenviroequipment.com